2-Aminobenzimidazole and -benzoxazole as N-nucleophile in palladium-catalysed aminocarbonylation
作者:Máté Gergely、Attila Bényei、László Kollár
DOI:10.1016/j.tet.2020.131079
日期:2020.4
Palladium-catalysed aminocarbonylation of aryl iodides in the presence of 2-aminobenzimidazole and 2-aminobenzoxazole as N-nucleophile was carried out. Single CO insertion took place, however, instead of the expected carboxamides (C(O)NH) the corresponding N-acyl-imine (C(O)NC) derivatives were obtained. The structure of the latter compounds can be explained by tautomerization involving the heterocyclic